I recommend
www.lulu.com as a publisher when you think you have a 'final' product. They help you through the process for free, have a helpful forum area, and you get to hold your work in your hand with bookcovers and now even dustjackets for a really nominal fee.
A 112 page book, perfect bound (softcover) or coilbound (I do cookbooks) with no color photo or artwork inside pages (your covers can be as colorful as you want) will cost you under 7 (seven) dollars US. You pay postage to yourself.
You can buy ISBN's for your work thru' Lulu and get Amazon and Barnes and Noble to buy and resell them. Lulu has press kits and other things to help promote your book. AND you can sell your work as an Ebook at no extra charge.
I was glad I found Lulu two years ago. I have two books for sale thru' them and am working on two more and a revision of one when I have any time at all.
Getting your hardwork into your hands is sort of like being handed your new baby; very, very fulfilling!